Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Communication method and system with encryption of information

Communication method and system with encryption of information

US Patent 4961221 · Granted Oct 2, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Tree structured star telecommunication system including multitrate frames1996
Multirate digital multiplexing demultiplexing method and device1994
Synchronization of terminal stations in a multirate half-duplex tree-structured 1993
Synchronization method and synchronization recovery devices for half-duplex comm1991
Loop-back device for half-duplex optical transmission system1991
Storage battery control device1989